EP 0990713 B1 20030312 - Thermal barrier coating process
Title (en)
Thermal barrier coating process
Title (de)
Anwendung eines thermischen Spritzverfahrens zur Herstellung einer Wärmedämmschicht
Title (fr)
Procédé de revêtement de barrière thermique
Publication
Application
Priority
- EP 99810718 A 19990810
- EP 98810886 A 19980907
Abstract (en)
[origin: EP0990713A1] A thermal spraying process used to manufacture a layer for a heat insulating layer made of pulverous material consisting of up to 80 mol.% zirconium silicate comprises selecting process parameters so that the layer has a structure with lamellar elements. A thermal spraying process used to manufacture a layer for a heat insulating layer made of pulverous material (10) consisting of up to 80 mol.% zirconium silicate whose particles have a diameter of 10-100 microns comprises partially melting the particles in a gas stream (42) under reducing conditions and at a temperature of more than 2000o C. The process parameters, including the dwell time of the particles in a heat-releasing medium, especially a plasma (41) or a flame, the temperature of the heat-releasing medium and the impulse carried to the particles are selected so that the layer formed from the particles has a structure with a lamellar elements. Suitable gases or gas mixtures, preferably hydrogen, are used as reducing agents to release silicon-containing gases, especially silicon monoxide, and/or the thermal release of silicon-containing gases is carried out based on a high temperature of the heat-releasing medium.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C23C 4/11 (2016.01 - EP); C23C 4/12 (2013.01 - EP US); Y02T 50/60 (2013.01 - US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99810718 A 19990810